Outsole shoe-sewing machine.



Fx ASHWORTH. OUTSOLE SHOE SEWING MACHINE. APPLICATION FlLED MAY24,1912-' Patented Jan 18, 1916.

4 SHEETSSHEET 1.

F, ASHWORTH.

OUTSOLE SHOE SEWING MACHINE.

APPLICATION FILED MAY 24, 1912.-

Patented Jan. 18, 1916.

4 SHEETS SHEET 2.

1n vemiww:

F, ASHWORTH. OUTSOLE SHOE SEWING MACHINE.

APPLICATION FILED MAY 24. I912.

Patented Jan. 18, 1916.

4 SHEETS-SHEET 3.

j a? i F. ASHWORTH.

. oufsoua SHOE SEWING MACHiNE.

APPUCFYION FILED MAY 24, 1912. n Llfig fifig lamented Jan. 10, 1916.

4 SHEETS SHEET 4.

1 Sewing Machines; and Toto hereby declare pnrann FRED ASHWOBTH, 0F BEVERLY, MASSACHUSETTS, ASSIGNOR T0 UNITED SHOE .MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A QORPORATION OF NEW JERSEY.

Specifieation'of Letters Patent. 7

OUTSOLE SHOfEl-SEVVING- MACHINE.

Patented Jan. 18, 1916.

original application filed October 3, 1910, Serial No. 585,116. Divided and this application'flled May 24,

' 1912. Serial No. 699,364.

citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Outsole Shoethe following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to wax thread outsole shoe sewing machines and more particularly to a welt channeling mechanism for cutting a groove or channel in the surface of the welt to receive the stitches of the seam.

The primary-object of the present invention is to produce an improved mechanism for supporting and actuating the channeling cutter for machines of the class referred to.

With the above object in view, the invention contemplates the provision of a welt channel cutter mounted to vibrate in the line of the scam in advance of the needle and supported independently of the feed mech anism and means for actuating the cutter to cut the welt while the work is clamped between the work support and the presser foot. The channeling cutter is preferably connected withthe work feeding mechanism so that the cutter is actuated to out the welt during the retracting movement of the feed ing mechanism.

Further features of the inventionconsist of certain constructions, arrangements and combinations of parts, theadv'antages of which will be obvious to one skilled in the 1 art from the following description.

In the drawings illustrating the invention in the best form at present known to the in- I ventor, Figure 1 is a view in side elevation of a lock stitch shoe sewing machine embody;- ing the invention; Fig. 2 is a sectional plan 'riew taken on the line 22 of Fig. 1; Fig. 3 p is a detail sectional view illustrating particularly the feed mechanism; Fig. 4 is a detail view in side elevation of a ortion of the edge gage mechanism and the welt channelingor fudge stitch device; Fig. 5 is a detail view partly in section of the needle and ayvl carriers and their associated parts as viewed from beneath, the awl carrier being at the limit of its movement to the left; Fig. 6 is a view similar to Fig. 5 showing the awl carrier at the limit of its movement to the right;

'Fig. 7 is a detail sectional view illustrating particularly the awl carrier and its driver; F 1g. 8 1s a detail perspectiveviewof the awl carrier; Figs. 9 and 10 are detail perspective views of the two parts of the awl driver.

The machine illustrated in the drawing comprises a curved hook needle 1, a. curved awl 2, a thread arm 3, a looper 4, a rotary hook or loop taker 5, a loop spreader, 6, a

main take-up 7 an auxiliary take-up 8 arid a tension 9. The work is supported in the machine by means of a work support 10 and apresser foot 11. The presser foot is actuated to ntermittently clamp and release the work as is usual 1n this type of machine.

All of the parts above brieflyreferred to" are constructed and arranged in the same manner and operated by the same mechanism as that illustrated and describedin applicants co-pending application, Serial No.

- 585,116, filed October 3, 1910, of vwhich the present application is a division. For a full and complete 'description'of the partsnot fully described herein, reference mayfbe had to said application.

The Work is. fed through the machine by the awl 2. Thisawl is secured to the awl carrier 12 by the usual clamp block 13 and is oscillated and moved laterally to feed the work. To provide a feeding mechanismwhich is light and durable so that the machine can be operated at a high'rate of-speed without producing stitches of varying lengths, the awl carrier 12 is rigidly secured to or formed integral with a pin ,or red 14 which forms the pivot of the carrier. This rod 14 is mounted so as to be capable of os-v cillating and longitudinal movements in two Stationary armslo and 16 projecting for-.

wardly and upwardly from the machine frame. v

naled between the arms. The bearings for the rod 14are necessarily: located in close 'proxin'iity and to the rear of the work sup- These arms are located as close to each other as is permitted by the desiredv jcarr'ier hereinafter-described which is jourport 10 and it is desirablethatthe space occupied by the arms 15 and 16 and the parts supported thereby be as narrow as possible in order to give room in which to maniputo the awl and awl carrier by means of two pivoted levers 17 and 18, the forward ends of which engage slots in bearing pins or buttons 19 provided with conical ends engaging conical recesses in the ends of the pin. The

lever 17 is cam actuated as hereinafter described, and the two levers 17 and 18 are connected by a link 20, so that the levers are actuated in unison and the movements of the pin 11 in both directions are produced by the movements of the levers. To take up any lost motion between the ends of the levers and the pins and to compensate for any wear, the pivotal connection of the link 20 with the lever 18 is in the form of an adjustable pin 21. The two levers 17 and 18 are arranged substantially parallel to each other and project'forwardly through slotsin the arms 15 and 16, which arrangement brings the levers into .a comparatively narrow space and does not add appreciably to the width of the space occupied by the forward ends of the arms 15 and 16. The lever '17 is extended rearwardly beyond its pivot,

and is pivotally connected to one member,

The middle point of of a toggle lever 22. this toggle lever is connected by a link 23 to one arm of a bell crank lever 24;, theother arm of which is provided with a roll 25 engaging a cam on the shaft'26, which,through the connections above described, imparts positive movements in both directions to the levers 17 and 18 and to the pin 14: of the awl carrler.

To enable the extent of the longitudinal movements of the pin 14: of the awl carrier *p be varied as may be desired toproduce the required length of stitch, one end of the toggle lever-22 is pivotally connected to a yoke 26 which is pivotally mounted in the machine frame above and below the toggle lever, as bestshown in Figs. 2 and 3. By

swinging this yoke about its pivot the position of the toggle lever 22 is changed so that when the toggle is actuated by the bell crank 24 more or less movement is imparted to the lever 17, and consequently to the pin 11 of the awl carrier. The pivot of the yoke 26 is arranged to be in line with the pivotal connections of the two men'ibers of the toggle lever 22 when said lever is in its'extreme rearward position; which is the position of the lever after the aw] has-been moved to the leftand is at the limit of its feeding movement. An adjustment of the yoke-26 about its pivot to vary the length of feed does not therefore vary the position of the awl at theend of its feeding movement so that with all lengths-of feed the awl is always moved to the same point di-v rectly in line with the needle.

To enable the length of feed to be readily adjusted by the operator to give the desired number of stitches to the inch either on different shoes or on different parts of the same shoe, the yoke 26 is provided with an arm 27 connected by a link 28 to one arm of a bell crank lever 29, the other arm of which is connected by a link 30 to a hand-'operated lever 31, which'is arranged in convenient'position to be moved by the operator. The hand lever 31 extends over a perforated gage plate 32 on the frame of the machine in which pins 33 may be inserted on each side of the lever 31 to limit the movement of the lever in either direction. To secure a finer which can be turned into a position to engage a pin 33 on one sldeof the lever. To

steady the movement of the lever and hold it in adjusted position, a spring pressed plunger 35 is mounted on the lever and is provided with a V-shaped end arranged to engage a correspondingly shaped guideway 111 the edge of the gage plate 32.

The mechanism for oscillating the awl carrier while permitting it to move laterally to feed the work comprises an awl driver mounted concentrically with the pin 14 of the awl carrier. Thisawl driver is made in two parts 36 and 37 for convenience of assembly, as illustrated in Figs. 9 and 10. Each of these parts i perforated to receive the pin 14 of the awl carrier and the part 36 is journaled on the pin while the part 37 is j ournaled on a boss, projecting inwardly from the arm 16, as clearly shown in Figs. 3, 5 and G. The two parts, when assembled, are secured together by pins 38. The awl driver-is held against lateral. movement between the arms 15 and 1G and has a. firm bearing on each side of'the portion of the awl carrier so that it can be operated smoothly and easily at a high rate of speec. To impart oscillating movements to the awl carrier and at the same time permit lateral movement of the awl carrier,'a portion of the hub of the awl driver is cut away to form surfaces and the hub of the portion of the carrier to produce any desired length of feed ii hile the arrangement of the surfaces 39 and 40 is such that no twisting stranris brought'upon the pin 11 of the awl carrier by either the oscillating or lateral move- 7 ments of the carrier. oscillating the awl driver is fully shown and The mechanism for described in the co-pending application of Fred Ashworthreferred to above and forms no part of the present invention. No description of the same is therefore made in this application.

To guide the work through the machineand enable the line of stitching to be located at the desired distance from the edge of the sole at different portions of the shoe, .the

- machine illustrated in the drawings is pro:

M :diatancetoformagroove or channel of the vided with an edge gage and improved mechanism for moving the edge gage to vary the distance of the seam from the edge of the sole. The edge gage is indicated at 42 and is located above and at the rear of the work-supportlO in position to engage the edge of the shoe sole. The downwardly extending shank of the edge gage is secured to an arm 43 so as to be capable of vertical adjustment thereon. The arm 43 1s pivoted at 44 on the frame of the machine below the work support so-as'to be capable of a swinging movement to move the edge gage 42 over the upper surface of the Worksupport toward and from the awl and needle. To enable the arm 43 to be conveniently moved by the operator a block 45' is rigidly secured to the lower end of the arm back of its Pivot and is provided with a curved groove 46 threaded rod 51 pivotally connected to an ear projecting upwardly from the block 45 and having a screwthreaded engagement.

with an adjusting nut 52 seated in a slot in the arm. A rotation of the nut 52 tips, the

block 45 about its pivotal connection 50 and thereby changes the position of'the groove 46 withlrelation to the shaft 48 of the arm 47, so that when the arm is moved a. greater or less movement is imparted to the arm 43 carrying the edge gage. p

The channeling or grooving knlfe for cutting a'chaimel or a groove in the surface ofthe welt to receive the stitches of the seam is indicatedv at 53. This knife'is formed upon the upper end of a rod 54 secured so as to be capable of vertical longitudinal adjustment" in a carrier'block 55. Theupper end of the rod 54 projects through the slot in the work -support 10 at one side of the awl, the knife.

at the upper end of the rod projecting above thesurface of the work support a sufficient To enable the &

desired ae al. By 'adjustingltherodirerti-r cally in theblock 55, the dim of enemy s re lated as desired.

n the construction illustrated in the,

drawings the knifeis arrangedto move back and forth in the line of feed with the awl. so that the knife makes its cutting'stl'oke during the return lateral movement of} the awl while thework is stationary ahd ffirmly v clamped between the presser foot andfwgr To. cause the knife to move with the awl the block 55 is'mounted upon amarrn support.

56 secured toa rock shaft 57 extending at right angles to the direction of feed; T0

the inner end of the shaft 57 anupwardl'y projecting arm 58 is secured and this arl'nfl is pivotally connected to one end of a curved bar 59, the other end of which is connected to the link 20 of the feed mechanism here-1 inbefore described. The arm 56 is thus oscillated by the feed mechanism and the welt grooving or channeling knife is caused tomove back and forth in the line of feed with the feeding awl. It is customary in outsole shoe sewing machines to cut a channel or 'groove in the welt at the forepart of the shoe only and to sew the seam nearer to the edge of the sole on the forepart than on the shank. In the machine illustrated in the drawings these results are secured by retracting the edge gage when the-shank portion of the sole is reached in the sewing operation and simultaneously depressing the grooving or channeling knife below thefsurface of the work support. To enable the knife to be depressed simultaneously with the rearward movement of the edge guide,

the block 55 is mounted to slide in the arm 56 and is connected to'the arm 43 carrying the edge gage by means of a bell crank lever 60, which is pivotally mounted on the arm of which is connected by a pin 61 projecting from the arm 43, and the other of which I is engaged by a pin 62 projecting from the block By means of this connection be- 56 andprovided in each end with a slot, one

tween the arm 43 and the block 55 the groov-- ing or channeling knife is projected above the surface of the work support when the edge gage is moved forward in operating on the forcpart of the shoe and is retracted below the surface of the work support when the edge gage is moved to the rear in operat ing on the shank.

Although the invention has been -illus-.

tratedanddescribed as embod ed in'a .welt J channeling mechanism for cutting a groove or channel in the surface of the welt to re' tures of the invention are not limited to a welt channeling mechanism, but may be ap ceive the stitches of the seam, certain fe'aplied with advantage to. mechanism for otherwise cutting the welt.

It is to be understood'that except as here inafter'defined in the claims, theinvention is not limited to any particular machine or form, what is claimed 1s type of machine, or to any particular construction or arrangement of parts.

-Having explained the nature and object of the invention, and having described a machine embodying the same in its preferred a from the feeding mechanism to cut the welt while the work is clamped between the worksupport and presser foot.

2. An outsole shoe sewing machine, have ing, in combination, stitch forming devices including a needle, a work support, a presser foot, work feeding mechanism, a knife mounted independently of the feeding mechanism arranged to act on the side of the work opposite the needle, and a connection between said knife and the feeding mechanism for vibrating the knife from the feeding mechanism in the direction of the seam. v

An outsole shoe sewing machine, hav ing, in combination, stitch forming devices including a needle, awork support, a presser foot, work feeding mechanism, a pivotally mounted arm having its pivot at right angl'es to the direction of feed, a knife mounted on the arm and arranged to act on that side only of the workthat is opposite the needle, and means for vibrating the arm on its pivot to vibrate the knife in the direction ,of the seam;

4. An outsole shoe sewing machine, having, in combination, stitch forming. devices, a work support, a presser foot, work feeding mechanism, means for actuating the presser foot to intermittently.,olamp and release the work, a welt cutting knife mountedindependently of the feeding mechanism, and connections between said knife and the work feeding mechanism for actuating 'the knife with the, feeding mechanism to cut the welt while the work is clamped between the work support and the a. An outsole presser foot. shoe sewing machine, havring, in combination, stitch forming devices "including a curved hook needle, a curved awl, an awl carrier, a pivot pin for the awl carrier rigid therewith, means for oscillating the awl carrier, a welt cutting knife, ac-- tuating mechanism. common to said pin and the-knife for moving the pin longitudinally in -opposite directions to cause the awl to feed the work and for moving the knife in -ing mechanism and the the direction of the seam simultaneously with the longitudinal movement of the pin' to cause the knife to cut the welt during the return movement of the pawl.

6. Anoutsole shoe sewing machine, having, in combination, stitch forming devices including a curved hook needle, a curved awl, an awl carrier, a pivot pin for the awl carrier rigid ing the awl carrier, mechanism for moving the pin longitudinally in opposite directions to cause the awl to feed the work, a welt cutting knife mounted independently of the pm,

knife to move the knife with the pin back and forth in the direction of the seam and cause the knife to cut the welt during the return movement of the awl.

7. An outsole shoe sewing machine, having, in combination, stitch forming devices including a curved hook needle, a curved awl, an awl carrier, a pivot pin for the awl carrier rigid therewith, means for oscillating the awl carrier, pivotally mountedleyers arranged with their ends in engagement with the opposite ends of the pin, mechanism for actuating the levers to move the pin in opposite directions to cause the awl to feed the work, a welt cutting knife, a pivotally mounted arm carrying the knife having its pivot at right angles' to the direction of feed, and connections between said therewith, means for oscillatand connections between the pin actuatlevers'and the knife carrying arm to oscillate the arm and cause the knife to out the welt during the return movement of the awl.

8. An outsole shoe sewing machine, hav-.

ing, in'combination, stitch f rming devices, a work support, a presser foot, work feeding mechanism, a welt cutting knife, a support for the knife mounted independently of the feeding mechanism, means for vibrating the knife in the direction of the seam, and means for moving the knife on its support to project and retract the knife above and below the upper surface of the work support.

9. An outsole shoe sewing machine, having, in combination, stitch forming devices, a work-support, a-presser foot, a welt cutting knife,- a carrier for the knife, a pivotally mounted arm in which the carrier is mounted having its pivot at right angles to the line of feed, means for oscillating the arm to vibrate the knife in the direction of the-seam, and means fer moving the carrier on the arm to project and retract the knife above and below the upper surface of the work support.

10. An outsole shoe sewing machine, having, in combination,-stitch forming devices, a work support, a presscr foot, a welt cutting knife, a pivotally mounted arm supporting the knife having its pivot at right angles to the direction of feed, mechanism for oscillating the arm to vibrate the knife -=in the direction of the seam, an edge gage,

a pivotally mounted carrier for the edge gage, means under the control of the operator for oscillating said carrier, and connections between said carrier and the welt cutting knife for projecting and retracting the knife above and below the upper surface of the work support. r 11. An outsole shoe sewing machine, having, in combination, stitch forming devices, a work-s upport, a presser-foot, a welt'cutting knife, :1 support for the knife mounted independently of the feeding mechanism,

'means for vibrating the knife in the direction of the seam, an edge gage, a carrier.

' therefor, and means'under control of the operator for advancing and retracting the edge gage and for simultaneously moving the knife on its support to project and retract the knife above and below the upper surface of the Work support.

12. An outsole shoe sewing machine, having, in combination, stitch forming devices including a needle, a work support, a presser foot, work feeding mechanism, a knife mounted independently of the feeding mechanism to act on thatside only of the work that is opposite the needle, and means for vibrating the knife in the direction of the seam.

13. An outsole shoe sewing machine, having, in combination, stitch forming devices a 14. An outsole shoe sewing machine, having, in combination, stitch forming devices, a work support, a presser foot, a welt cutting knife mounted independently of the feeding mechanism to act on one side onl of the work, means for vibrating the kni' e:

in the direction of the seam, and means to throw the knife into and out of operation.

- FRED ASHWORTH. Witnesses":

CHESTER E. ROGERS, LAURA M. Goo'nmnon. 

